82P2281PFG IDT, Integrated Device Technology Inc, 82P2281PFG Datasheet - Page 157

• Manufacturer Part Number: 82P2281PFG
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of 82P2281PFG

• Number Of Transceivers: 1
• Screening Level: Industrial
• Mounting: Surface Mount
• Package Type: TQFP
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Lead Free Status / RoHS Status: Compliant

T1/J1 FRMR Mode 0 (04DH)
UNFM:
REFCRCE:
logic 1.
REFEN:
REFR bit.
REFR:
Programming Information
IDT82P2281
Bit Name
Default
Bit No.
Type
= 0: The data stream is received in framed mode and is processed by the Frame Processor.
= 1: The data stream is received in unframed mode and the Frame Processor is bypassed.
In ESF format:
= 0: Disable from re-searching for synchronization when the Excessive CRC-6 Error occurs.
= 1: Search for synchronization again when the Excessive CRC-6 Error occurs. This function can only be implemented only if the REFEN bit is
= 0: “Locked in frame”. Once the previous frame synchronization is acquired, no errors can lead to reframe except for manually setting by the
= 1: Search for synchronization again when it is out of synchronization.
A transition from logic 0 to logic 1 forces to re-search for a new SF, ESF, T1 DM frame.
7
6
Reserved
5
4
157
SINGLE T1/E1/J1 LONG HAUL / SHORT HAUL TRANSCEIVER
UNFM
R/W
3
0
REFCRCE
R/W
2
1
REFEN
R/W
1
1
August 20, 2009
REFR
R/W
0
0